Dealer Signup Information. The 37th National Sports Collectors Convention will be held August 3-August 7, 2016 at the Atlantic City, NJ Convention Center. A limited number of dealer booths are currently still available.ealer Signup Information. The 37th National Sports Collectors Convention will be held August 3-August 7, 2016 at the Atlantic City, NJ Convention Center. A limited number of dealer booths are currently still available.
Carbon has by definition 6 protons. However, its many isotopes can have anywhere from 2 neutrons to 16 neutrons, with 6 neutrons being the most common (~95% of all carbon). Carbon has by definition <b>6 protons</b>.
Carbon-12 contains six protons, six neutrons, and six electrons; therefore, it has a mass number of 12 (six protons plus six neutrons). Carbon-14 contains six protons, eight neutrons, and six electrons; its mass number is 14 (six protons plus eight neutrons). These two alternate forms of carbon are isotopes.